Folding Handlebar

Abstract

A folding handlebar includes a stem, a pair of handles pivotally connected the stem, an abutting member, and a clamping device. The stem includes a fixing portion having a first abutting face, and an extending portion having a receiving space interconnected to a first bore. Each handle includes first and second joint faces. The abutting member includes a second abutting face abuttable against the first abutting face and one of the first and second joint faces, and a second bore aligned with the first bore. The clamping device includes a rod assembly inserted into the first and second bores, a fastener received into the receiving space and engageable with the rod assembly, and an eccentric member abuttable against the abutting member to selectively abut against the stem for providing a reliable engagement between the abutting member and the stem.

1 . A folding handlebar operated between a usage position and a folded position comprising:
 a stem including a fixing portion and an extending portion connected with each other, with the fixing portion having a first abutting face opposite to the extending portion, with the extending portion having a receiving space interconnected to a first bore extending through the first abutting face;   a pair of handles pivotally connected the stem, with each handle including first and second joint faces;   an abutting member including a second abutting face abuttable against the first abutting face and one of the first and second joint faces, and a second bore extending therethrough and aligned with the first bore; and   a clamping device including a rod assembly inserted into the first and second bores, a fastener received into the receiving space and engageable with the rod assembly, and an eccentric member abuttable against the abutting member;   wherein when the folding handlebar is located in the usage position, the second abutting face abuts against the first abutting face and the first joint faces of the pair of handles;   wherein when the folding handlebar is located in the folded position, the second abutting face abuts against the first abutting face and the second joint faces of the pair of handles.   
     
     
         2 . The folding handlebar as claimed in  claim 1 , with the fixing portion including two recesses arranged at two opposite ends thereof, with each recess having a first through-hole extending therethrough, with each handle pivotally engaged with each respective recess and having a second through-hole extending therethrough and aligned with the first through-hole, and with two pin each inserted into the respective first and second through-holes. 
     
     
         3 . The folding handlebar as claimed in  claim 2 , with each handle including a stop protrusion arranged adjacent to the first joint face, and with the abutting member including a stop wall disposed therearound and abuttable against the respective stop protrusion. 
     
     
         4 . The folding handlebar as claimed in  claim 3 , with each handle further including a third joint face arranged between the first and second joint faces, with a fillet formed between the second and third joint faces, and with each recess including a bottom surface perpendicular to the abutting face of the stem and abuttable against one of the second and third joint faces and the fillet. 
     
     
         5 . The folding handlebar as claimed in  claim 3 , with the stop protrusion having a stop face connected with a side of the first joint face opposite to the second joint face, and with an included angle of less than  90  degrees formed between the stop face and the first joint face. 
     
     
         6 . The folding handlebar as claimed in  claim 5 , with the first abutting face being substantially a H-shaped plane, with the first, second, third joint faces, and the stop face of the stop protrusion being substantially flat and respectively parallel to the second through-hole, with the second abutting face being substantially a rectangular plane, and with the first abutting face and one of the of the first and second joint faces located in the same plane. 
     
     
         7 . The folding handlebar as claimed in  claim 1 , with the abutting member including a concave arc face at one side thereof opposite to the second abutting face, with the eccentric member including a lever section and an eccentric section disposed opposite to the lever section, and with the eccentric section pivotally connected to the rod assembly and abuttable against the concave arc face of the abutting member. 
     
     
         8 . The folding handlebar as claimed in  claim 7 , with the eccentric section extending along a central axis, with the eccentric section including an arc face opposite to the lever section, and an orifice extending along an eccentric axis spaces from the central axis, with a distance formed between the central and eccentric axes, and with the rod assembly including a first rod member inserted into the orifice. 
     
     
         9 . The folding handlebar as claimed in  claim 8 , with the eccentric section further including a gap interconnected with the orifice, with the rod assembly further including a second rod member located within the gap and inserted through the first and second bores, with the second rod member having a first end and a second end spaced from each other, with the first end threadedly connected to and arranged perpendicular to the first rod member, and with the second end threadedly connected to the fastener. 
     
     
         10 . The folding handlebar as claimed in  claim 9 , with clamping device further including a biasing member received into the receiving space and mounted around the second rod member, and with the biasing member is disposed between and connects to an inner wall of the receiving space and the fastener.